On learning of Abraham Lincoln's death in 1865, Benjamin Disraeli told the House of Commons, 'Assassination has never changed the history of the world.' Was he right? In this study we'll learn about the role that murder has played in political change since ancient times, starting with Julius Caesar in 44 BCE, then moving on to the Duke of Orleans in Paris in 1407, Emperor Alexander II of Russia in 1881; Irish Republican Michael Collins in 1922; and Marxist Leon Trotsky in 1943. Participants will be encouraged - but not required - to make a presentation covering the context, target, perpetrator, motive, method and consequences of an assassination drawn from a list of sixty choices. Empty slots in the schedule will be filled by guest presentations by colleagues from 'sister' organizations in the UK and Canada. Time will be reserved for Q&A and round-the-table discussion following each presentation.